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One beep every
10 seconds
Message Alert.
37
AppendixAppendix
37
Screen icons, indicator lights & tones
Screen icons & alert tones
Ringer off.
Battery charging (animated display).
Low battery (flashing); place handset in base or charger to
recharge.
MUTE
Microphone is muted.
NEW
New calls (press
CID
to review call log).
Two short beeps
Press
VOLUME
keys while the volume levels are
already at limits.
Screen icons
Handset alert tones
Handset 1
NEW
MUTE
11/23 10:01
AM
Four short beeps
Low battery warning.
Two beeps
Out of range during off-hook.
Confirmation tone
Programming command completed successfully.
A series of beeps
Press
VOLUME
keys while the volume levels are
already at limits.
Base tones
Indicator lights
In Use
On when handset is in use. Flashes
when another phone is in use on the
same line, or answering system is
answering an incoming call.
Charging
On when handset is positioned so its
battery can charge.
Answer On/Off
On when answering system is activated and
ready to receive calls.
Speaker
On when speakerphone is in use.
91-000353-060-000_E5640 MK3B CIB_R2.qxd 2/13/1950 7:21 PM Page 37